The term "3G" stands for the third generation of mobile phone technology, according to Reference.com. 3G technology has an improved amount of bandwidth transmission capabilities over its predecessor, 2G, with an expanded efficiency in all services provided, explains HowStuffWorks. The bandwidth of 3G is more expansive due to the use of wide area cellular telephone networks to transmit Internet and voice data.
3G networks utilizes upgraded technology, as well as technologies based on the 2G network, to perform. The most common components of the 3G network, such as its CDMA2000, are based on the 2G Code Division Multiple Access, while the Wideband Code Division Multiple Access and Time-division Synchronous provide features relatively unique to the 3G network.
3G uses three layers to provide a more flexible and responsive network when compared to its 2G forerunner, so it handles web applications, phone and video files more adeptly. The first layer provides a speedier output, the second optimizes the capacity of the network to be distribute data and the third and bottom layer serves as the connectivity layer for voice traffic. 3G uses the KASUMI block crypto to authenticate the network and provide improved security over the older A5/1 stream cipher of 2G networks.